Multifunctional MOF@COF Nanoparticles Mediated Perovskite Films Management Toward Sustainable Perovskite Solar Cells

• DOI: 10.1007/s40820-024-01390-9
• Publication Date: 2024-04-11T10:02:21Z
• Authors: Yayu Dong; Jian Zhang; Hongyu Zhang; Wei Wang; Boyuan Hu; Debin Xia; Kaifeng Lin; Lin Geng; Yulin Yang
• Keywords: Nanopore; Covalent organic framework

Abstract Although covalent organic frameworks (COFs) with high π -conjugation have recently exhibited great prospects in perovskite solar cells (PSCs), their further application PSCs is still hindered by face-to-face stacking and aggregation issues. Herein, metal–organic framework (MOF-808) selected as an ideal platform for the situ homogeneous growth of a COF to construct core–shell MOF@COF nanoparticle, which could effectively inhibit aggregation. The synergistic intrinsic mechanisms induced nanoparticles reinforcing stability mitigating lead leakage been explored. complementary utilization -conjugated skeletons nanopores optimize crystallization large-grained films eliminate defects. resulting achieve impressive power conversion efficiency 23.61% superior open circuit voltage (1.20 V) maintained approximately 90% original after 2000 h (30–50% RH 25–30 °C). Benefiting from effects chemical fixation adsorption abilities nanoparticles, amount unpackaged soaked water (< 5 ppm) satisfies laboratory assessment required Resource Conservation Recovery Act Regulation.